// Inspired by https://github.com/Inndy/vue-clipboard2
const Clipboard = require("clipboard");
if (!Clipboard) {
	throw new Error("you should npm install `clipboard` --save at first ");
}

export default {
	bind(el, binding) {
		if (binding.arg === "success") {
			el._v_clipboard_success = binding.value;
		} else if (binding.arg === "error") {
			el._v_clipboard_error = binding.value;
		} else {
			const clipboard = new Clipboard(el, {
				text() {
					return binding.value;
				},
				action() {
					return binding.arg === "cut" ? "cut" : "copy";
				}
			});
			clipboard.on("success", e => {
				const callback = el._v_clipboard_success;
				callback && callback(e) // eslint-disable-line
			});
			clipboard.on("error", e => {
				const callback = el._v_clipboard_error;
				callback && callback(e) // eslint-disable-line
			});
			el._v_clipboard = clipboard;
		}
	},
	update(el, binding) {
		if (binding.arg === "success") {
			el._v_clipboard_success = binding.value;
		} else if (binding.arg === "error") {
			el._v_clipboard_error = binding.value;
		} else {
			el._v_clipboard.text = function() {
				return binding.value;
			};
			el._v_clipboard.action = function() {
				return binding.arg === "cut" ? "cut" : "copy";
			};
		}
	},
	unbind(el, binding) {
		if (binding.arg === "success") {
			delete el._v_clipboard_success;
		} else if (binding.arg === "error") {
			delete el._v_clipboard_error;
		} else {
			el._v_clipboard.destroy();
			delete el._v_clipboard;
		}
	}
};
